Durability to envy! The kit is for professionals who require their tools for durability and reliability regardless of the frequency of use or the resistance of the bolts they are dealing with, even if they do not go without a hammer. Top-notch materials
The core is made of hardened S2 steel, which exceeds the hardness and pressure resistance of CrV steel (hardness coefficient - 59HRC, strength: 220 kg / cm2). The handle of the screwdrivers was cast from a hard impact-resistant composite and finished with an adhesive-heat-shrinkable rubber.